SOIC-8 footprint, 10 mV/°C scaling
The LM35DMX is a Texas Instruments precision centigrade temperature sensor in an 8-SOIC package, delivering an analog output that scales linearly at 10 mV per °C. No external calibration is needed — the 10 mV/°C scale factor is factory-trimmed to ±1.5°C accuracy at 25°C, covering the 0°C to 100°C local sensing range. The analog voltage output connects directly to a microcontroller ADC — the 10 mV/°C slope gives 0V at 0°C and 1.0V at 100°C, so a 10-bit ADC with a 2.5V reference resolves about 0.25°C per LSB.
Supply rail and output drive
Drawing only 60 µA from the supply, the sensor's self-heating stays under 0.1°C in still air. The output is a low-impedance voltage source that drives a 100 kOhm ADC input directly — no buffer needed. For noisy environments, a 0.1 µF bypass cap at the supply pin and a 1 nF cap at the output filter RF pickup without slowing the thermal response.